... with logo printed, beware of imitation. Zipper: Using high quality nylon fabric, high strength, stretch-proof, hard to twist, can be repeated ... about 60kgs pressure, well-designed, more durable. Wheels: Using high quality PVC wheels, stainless steel axletree make it more bearing, ... carton Capacity Carton packing40”HQ2PCS/SET(20”24”)850SETS40'HQ3PCS/SET(20”24”28”)640SETS40’HQ4PCS/SET(20”24”28”32”)420 ...